Electrochemical examination of electrostatic attraction of cations and the ejection of anions by polyanionic electrode coatings stable in non-aqueous solvents

被引：13

作者：

Nguyen, F ^{[1
]}

Anson, FC ^{[1
]}

机构：

[1] CALTECH, Arthur Amos Noyes Labs, Div Chem & Chem Engn, Pasadena, CA 91125 USA

来源：

ELECTROCHIMICA ACTA | 1998年 / 44卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

polyanion; electrode-coating; ion-exchange; permselectivity; non-aqueous;

D O I：

10.1016/S0013-4686(98)00111-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The polyanionic block copolymer of Eastman Kodak, AQ 55, was examined for its ability to incorporate and retain electroactive counterions in both aqueous and non-aqueous (acetonitrile) solutions. The coatings exhibited substantial cation permselectivity: chloride anions were prevented from reaching the underlying electrode to be oxidized but could be oxidized via electron-transfer to Ru(phen)(3)(3+) (phen = 9,10-phenanthroline) cations generated from Ru(phen)(3)(2+) counterions incorporated in the coating of AQ 55. Ru(pdon)(3)(2+) (pdon = 9,10-phenanthroline-5,6-dione) counterions incorporated in coatings of AQ 55 and reduced in acetonitrile to anionic complexes are lost from the coatings much more rapidly than is the original cationic complex. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：239 / 245

页数：7

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